Rolling mill housing



March 21, 1939; ECHAPMAN 2,150,911

ROLLING. MILL HOUSING Original Filed Aug. 31,1954 2 Sheets-Sheet 1 fizz/62350;"

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March 21, 1939. .E CHAPMAN 2,150,911

ROLLING MILL HOUSING Original Filed Aug. 31. 1934 2 Sheets-Sheet 2 Patented Mar. 21, 1939 UNITED STATES PATENT OFFICE Application'Aug-ust 31, 1934, Serial No. 742,308 Renewed June 9, 1938 18 Claims.

My invention relates to rolling mill housings, and one object of my invention is-to providea structure completely resistant to breakage and capable of withstanding the stresses which may be set up in the operation-of structures of this type.

A further objectof mylnvention is to provide a housing constructed of rolled metal sections which are subsequently welded together intoa in. unitary structure.

Another object of my invention is to provide simple and efficient supporting means for antifriction bearing blocks which engage the neck ends of the rolls.

And a further object of my invention is to provide a mill housing structure inwhich the notched supporting means for the antifriction bearing blocks engaging the roll necks are elastically separated from the main load-resisting members of the mill housing. In other words, I have provided main load-resisting members which are a separate elastic entity.

These and other features of .my' invention-are more fully set forth hereinafter; reference being made to the accompanying drawings, more or less diagrammatic in character, in which:

Figure 1 is an elevation of a rolling mill housing within the scope of my invention. Fig. 2 is a plan View of the same. :20 Fig. 3 is a sectional plan view on the line IIIIII, Fig. 1.

Fig. 4 is an edge view looking in the direction of the arrow a, Fig. 1, and

Fig. 5 is a vertical sectional view on the line My improved structure comprises a U-shaped element IQ of rolled metalwhich is bent to the form illustrated in Fig. 1 and becomes the main load or thrust-resisting elementof the housing.

a) It also provides the space receiving the ends or necks of the upper and lower rolls'A and B,'respectively.

To form the sides and bottomrconnecting-portion of the housing frame which support the element Ill, I provide the substantially U-shaped plate sections I I which are spacedapart laterally and are welded at m to the U-shaped portion III,

as clearly illustrated in Figs. land 3. .At the' sides of the frame, these sections may be separat- 54) ed, as illustrated in Figs. 2 and 3,.although they may be boxed, if desired.

At the upper end of the housing frame, the usual nut or threaded element I2 for the reception of the adjusting screw for the upper roll may be provided, and this member is preferablyin the form of a single casting. It may be provided with depending projections l5 at its sides which are welded at y tothe upper ends of the U-shaped section II), and it will be understood, of course, that the side plates I I are welded to the ends of the member I2 at x in the same manner that they are welded to the U-shaped section Ill.

The side plates I i are provided with the usual supporting feet I6 which may be welded thereto and, by preference, spacing or the braces I! are placed over the same at their inner sides between the plates I I and welded in place. The lower part of the housing structure is preferably of box-like form, as illustrated in the sectional view Fig. 5, including a semicircular strap member IS' which underlies the curved lower portion of the side plates I I of the housing and is welded thereto and to the feet l6.

Within the space defined by the U-shaped member I0 and the nut or threaded element I2 secured to the upper ends of the same, provision is made forsupporting the reduced ends or necks a and b of the upper and lower rolls A and B. The walls of the member I9 forming this spacehave been machined to exact parallelism, with a semicircularly curved lower end. This lower end receives a liner 2Q semicircular in shape, exactly fitting the semicircular lower portion of the U- shaped section I ll, with a flange 213 overlying the edges of the same so as to be retained against lateral displacement. This liner is recessed at 20 for the reception of the lower bearing block 2| for the neck I) of the lower roll B. Side liners 22 are carried by the walls of the U-shaped section In, which liners are also 'flanged at 22 so as to be retained in place, and said liners22 may rest upon the upper ends'of the semicircular liner 26. The liners 22 are secured to the housing structureby means of bolts 23 passing through said liners and the walls of the member ID, and having heads fitting recesses in said liners, as shown. in Fig. 3. The liners 22 are recessed at 22 and 22 for the reception of bearing members 24 and 25 of antifriction metal engaging the necks a. and b of the respective rolls A and B. The surfaces of the bearing members. 2% and 25 conform to the contour of the roll necks b While the surfaces of Y As may be understood, the upper roll may rise and fall during the operation of rolling a plate, and the function of the adjusting screw is to insure that the rise of the roll is such as to enable it to roll a plate to the desired gauge in any particular pass and hold it against the plate during the rolling operation.

Heretofore, the great difliculty with rolling mill housings of cast metal has been their proneness to break, the stresses to which the cast metal is subjected being such as to render breakage possible at any point at which the wall has been reduced for the reception of a bearing element for the neck ends of the rolls. In my improved construction, the main load-resisting member I0 of the mill housing is elastically separated from the notched supporting means for the antifriction bearing blocks or members and, while such means are supported by the main load-resisting member for horizontal loads, they do not participate in the vertical loads.

While I have shown and described a more or less specific embodiment of the features forming the subject of my invention, it will be understood that I am not limited thereto and modifications may be made therein within the spirit andscope 0f the appended claims, without departing from my invention.

1 claim:

1. In a rolling mill housing, a continuous loadresisting member forming the roll-receiving space, supporting plates therefor disposed in parallelism; said plates flanking and underlying said load-resisting member and welded thereto, upper roll adjusting means surmounting said load-resisting member and disposed between said supporting plates and secured thereto, and a bearingblock receiving element connected to the main load-resisting member in such a manner that it does not elastically participate in the vertical loads.

2. In a rolling mill housing, a continuous loadresisting member forming the roll-receiving space, supporting plates therefor disposed in parallelism; said plates flanking and underlying said load-resisting member and welded thereto, upper roll adjusting means surmounting said load-resisting member and disposed between said' supporting plates and secured thereto, and a bearingblock-receiving element connected to the main load-resisting member in such a manner that it is supported by the main load-resisting element for horizontal. loads without elastically participating in the vertical loads.

3. In a rolling mill housing, a continuous loadresisting member forming the roll-receiving space, supporting plates therefor disposed in parallelism; said plates flanking and underlying said load-resisting member and welded thereto, upper roll adjusting means surmounting said load-resisting member and disposed between said supporting plates, and a bearing-block-receiving element so connected to the main structure that it is not loaded along its longitudinal axis by th rolling operation.

4. In a rolling mill housing, a continuous loadresisting member of U-shape forming the roll receiving space, supporting plates therefor disposed in parallelism; said plates being disposed ,at right angles to and flanking and underlying said load-resisting member and welded thereto, upper 'roll adjusting -means surmounting said load-resisting member and including an element Welded thereto and to said supporting plates, and .a bearing-block-receiving element connected to the main load-resisting member in such a manner that it does not elastically participate in the vertical loads.

5. In a rolling mill housing, a continuous loadresisting member of U-shape forming the rollend-receiving space, supporting plates disposed in parallelism at right angles thereto and flanking and underlying said load-resisting member and weldedthereto, upper roll adjusting means surmounting said load-resisting member and including an element welded thereto and to said supporting plates, and a bearing-block-receiving element connected to the main load-resisting member in such a manner that it is supported thereby for horizontal loads without elastically participating in the vertical loads.

6. In a rolling mill housing, a continuous loadresisting member of U-shape forming the roll.- receiving space, supporting plates disposed in parallelism at right angles thereto and flanking and underlying said load-resisting member and welded thereto, upper roll adjusting means surmounting said load-resisting member and including an elementwelded thereto and to said supporting plates, and a bearing-block-securing element so connected to the main structure that it is not loaded along its longitudinal axis by the rolling operation.

'7. A rolling mill housing comprising a main load-resisting member composed of rolled metal sections welded together including a U-shaped member arranged at right angles with respect to the other metal sections, and a notched bearingblock-receiving element carried by and elastically separated from the U-shaped member of said main load-resisting element.

8. A rolling mill housing comprising a main load-resisting member consisting of rolled metal sections substantially U-form in contour welded together including a U-shaped member arranged at right angles with respect to the other metal sections, and a notched bearing-block-receiving element carried by said housing and elastically separated from the U-shaped member of said load-resisting element.

9. In a rolling mill housing, a frame of plate sections welded together, a main load-resisting element secured within said frame, and a bearing-block-receiving element connected to the main load-resisting member in such a manner that it is supported thereby for horizontal. loads without elastically participating in the vertical loads.

10. In a rolling mill housing, a frame of plate sections welded together, a main load-resisting element secured within said frame, and a bearing-block receiving element so connected to the main load-resisting element of the housing that it isynot loaded axially by the rolling operation.

'11, A rolling mill housing comprising a welded structure of rolled metal sections including a continuous U-shaped element forming the roll-endreceiving space, a nut element for the adjusting screw surmounting said U-shaped member and Welded thereto, and continuous body plates flanking said'U-shaped element and welded thereto; said plates underlying the U-shaped element.

12. A rolling mill housing comprising a welded structure consisting of 'a continuous U-shaped member forming the roll-end-receiving space, a casting forming a nut element for the adjusting screw surmounting said U-shaped member and welded thereto, and continuous body plates flankingsaid U-shaped member and welded thereto; said plates underlying the U-shaped member.

13. A rolling mill housing comprising a welded structure consisting of a continuous U-shaped member forming the roll-end-receiving space, a nut element for the adjusting screw surmounting said U-shaped member and Welded thereto, continuous body plates flanking said U-shaped member and welded thereto; said plates underlying the U-shaped member, and a bottom plate connecting the portions of the body plates underlying the U-shaped member.

14. In a rolling mill housing, a continuous loadresisting member forming the roll-end-receiving space, supporting plates disposed in parallelism and flanking said load-resisting member and welded thereto, upper roll adjusting means surmounting said load-resisting member and welded thereto and to said supporting plates, and supports for the neck ends of the rolls carried by said continuous load-resisting member.

15. In a rolling mill housing, a continuous loadresisting member forming the roll-end-receiving space, supporting plates disposed in parallelism and flanking said load-resisting member and welded thereto, upper roll adjusting means surmounting said load-resisting member and Welded thereto and to said supporting plates, and bearing blocks for contact with the neck ends of the rolls supported by said load-resisting member.

16. In a rolling mill housing, a continuous loadresisting member forming the roll-end-receiving space, supporting plates disposed in parallelism and flanking said load-resisting member and welded thereto, upper roll adjusting means surmounting said load-resisting member and welded thereto and to said supporting plates, recessed liners removably secured to said load-resisting member, and blocks for contact with the neck ends ofthe rolls disposed in the recesses of said liners.

17. In a rolling mill housing, a continuous loadresisting member forming the roll-end-receiving space, supporting plates disposed in parallelism at right angles thereto and flanking and underlying said load-resisting member and secured thereto, and a bearing-block-receiving element connected to the main load-resisting member and so supported thereby as to participate in the horizontal loads Without elastically participating in the vertical loads.

18. In a rolling mill housing, a frame, a main load-resisting member permanently secured Within said frame, and a bearing-block-receiving element connected to said main load-resisting memher and so supported thereby as to participate in the horizontal loads Without elastically participating in the vertical loads.

EVERETT CHAPMAN. 

